Debt Fixed-rate Notes and Other (Details 1) - USD ($) $ in Millions	Jan. 15, 2025	Dec. 31, 2025	May 31, 2025	Dec. 31, 2024	Jan. 31, 2024
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount			$ 1,000		$ 2,500
Long-term debt		$ 15,696
Other long-term debt		184		$ 264
Debt issuance costs		(81)		(83)
Total long-term debt		15,696		16,274
Less: current portion		534		1,582
Long-term Debt and Lease Obligation		$ 15,162		14,692
2025
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	2.93%	2.93%
Extinguishment of Debt, Amount	$ 1,500
Long-term debt		$ 0		1,500
2026
Long-Term Debt (Table Amounts) [Abstract]
Long-term debt		$ 527		527
2027
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		3.20%
Long-term debt		$ 750		750
2028
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		3.25%
Long-term debt		$ 2,000		2,000
2029
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount					$ 500
Debt Instrument, Interest Rate, Stated Percentage		4.60%			4.60%
Long-term debt		$ 500		500
2030
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount			$ 500
Debt Instrument, Interest Rate, Stated Percentage			4.65%
Long-term debt		$ 1,250		750
2031
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		7.75%
Long-term debt		$ 466		466
2033
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		4.70%
Long-term debt		$ 1,000		1,000
2034
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount					$ 850
Debt Instrument, Interest Rate, Stated Percentage		4.90%			4.90%
Long-term debt		$ 850		850
2035
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount			$ 500
Debt Instrument, Interest Rate, Stated Percentage		5.25%	5.25%
Long-term debt		$ 500		0
2040
Long-Term Debt (Table Amounts) [Abstract]
Long-term debt		$ 800		800
2043
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		4.75%
Long-term debt		$ 950		950
2045
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		3.85%
Long-term debt		$ 600		600
2047
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		4.03%
Long-term debt		$ 2,250		2,250
2050
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		5.25%
Long-term debt		$ 1,000		1,000
2053
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		4.95%
Long-term debt		$ 1,000		1,000
2054
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Face Amount					$ 1,150
Debt Instrument, Interest Rate, Stated Percentage		5.20%			5.20%
Long-term debt		$ 1,150		$ 1,150
Minimum | 2026
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		7.75%
Minimum | 2040
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		5.05%
Maximum | 2026
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		7.88%
Maximum | 2040
Long-Term Debt (Table Amounts) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		5.15%